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It sounds like you're looking for a solution guide or study companion for HKDSE Mathematics in Action (Module 2: Algebra and Calculus) — a popular textbook series in Hong Kong for the Extended Part M2 curriculum.
For specific chapter-by-chapter answers, the following community-driven sites are common resources: Course Hero Hkdse Mathematics In Action Module 2 Solution
Simply copying the Mathematics in Action solution manual will not help you during the actual exam. Instead, follow these steps: It sounds like you're looking for a solution